Checklists for software errors, setup, and tool workflows.

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...

PowerShell 502 Bad Gateway: A Troubleshooting Checklist

When a PowerShell script or command returns a 502 Bad Gateway error, it usually means the web ser...

How to Fix Windows Update Stuck on Downloading

You click Check for updates, and the progress bar sits at some percentage for hours. Maybe it say...

Fix Microsoft Teams Camera Not Working After Update

After a Microsoft Teams update, your camera may stop working. Common symptoms: a black screen, a ...

How to Fix PowerShell DNS Errors in Windows

When PowerShell throws a DNS error—like "DNS name does not exist" or "Cannot resolve the server n...

Fix Go Modules Proxy 'No Such Host' Error

When using Go modules with a proxy, you may see an error like:

go: example.com/modu...